如何对json数据使用Symfony验证

use Symfony\Component\Validator\Constraints as Assert;

class MyDataValidator
{
    /**
     * @Assert\NotBlank(message="Name cannot be blank")
     * @Assert\Type(type="string", message="Name must be a string")
     */
    public $name;

    /**
     * @Assert\NotBlank(message="Email cannot be blank")
     * @Assert\Email(message="Invalid email address")
     */
    public $email;
}

use Symfony\Component\Validator\Validation;

// 实例化验证器服务
$validator = Validation::createValidator();

// 要验证的JSON数据
$jsonData = '{
    "name": "John Doe",
    "email": "johndoe@example.com"
}';

// 将JSON数据解码为关联数组
$data = json_decode($jsonData, true);

// 使用验证器服务对数据进行验证
$violations = $validator->validate($data, MyDataValidator::class);

// 检查是否有验证错误
if (count($violations) > 0) {
    // 处理验证错误
    foreach ($violations as $violation) {
        echo $violation->getPropertyPath() . ': ' . $violation->getMessage() . "\n";
    }
} else {
    // 数据验证通过
    echo 'Data is valid';
}